All about the various PC power supply cables and connectors
Cooler Master Store - Europe Store. PCI-E 8 pin to 2x(6+2) pin (Modular/Flat cable)(Model 1)
Adapter 2x Molex/PCI-Express 8-pin AK-CA-29
6 Inch Dual 4 Pin Molex to 8 Pin PCI-E Power Adapter
Amazon.com: TeamProfitcom PCI-e 8 Pin Male to Dual 8 Pin (6+2) Male PCI Express Power Adapter Cable for EVGA Modular Power Supply Cable for Graphics Video Card 8 pin Splitter 25+10 inches : Electronics
18AWG PCIe 6pin to Dual 8(6+2) pin Y-Splitter Cable Extension